Distilled water and potable water are examples of water.

Important Questions on Atomic Structure; Physical and Chemical Properties of Matter

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

Boiling point of the water _____ with increase of atmospheric pressure.

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

Blotting papers absorb ink by _____ action.

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

Di-electric constant of water is?

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

Coliform is a _____ spore creating bacteria.

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

The safety limit of $\mathrm{pH}$ of drinking water is _____.

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

In absence of suspended impurities the bacteria and germs are totally killed by _____. (IR-rays / UV-rays)

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

Temporary hardness of water is also known as _____ hardness.(chloride/sulphate/water)

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q A

The hardness caused by calcium chloride is _____ hardness.